Vulnerability · Published Oct 6, 2026 · Assigned by AMZN
CVE-2026-105812Code injection via unencoded configuration values during Python code generation in Bedrock AgentCore Starter Toolkit agent import
Critical 9.0
In plain English
A critical-severity code injection in bedrock-agentcore-starter-toolkit from aws. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities).
Official description
Improper control of code generation in the agent import functionality of Amazon Bedrock AgentCore Starter Toolkit before 0.3.14 might allow an authenticated same-account actor to execute arbitrary code when a user imports and runs or deploys a Bedrock Agent, via crafted configuration values incorporated into generated Python source without safe literal encoding. To remediate this issue, users should upgrade to version 0.3.14. Because this issue persists into generated source, upgrading alone is not sufficient: agents imported with an affected version must be re-imported with version 0.3.14 or later and their local and deployed output artifacts replaced.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| aws | bedrock-agentcore-starter-toolkit | 0.1.4 – through 0.3.13 |
Weakness: CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
References
- https://pypi.org/project/bedrock-agentcore-starter-toolkit/0.3.14/ patch, release-notes
- https://aws.amazon.com/security/security-bulletins/2026-127-aws/ vendor-advisory